IUBMB Enzyme Nomenclature


Accepted name: L-serine kinase (ATP)

Reaction: ATP + L-serine = ADP + O-phospho-L-serine

For diagram of reaction click here.

Other name(s): sbnI (gene name)

Systematic name: ATP:L-serine 3-phosphotransferase

Comments: The enzyme, characterized from the bacterium Staphylococcus aureus, is involved in the biosynthesis of L-2,3-diaminopropanoate, which is used by that organism as a precursor for the biosynthesis of the siderophore staphyloferrin B.

Links to other databases: BRENDA, EXPASY, ExplorEnz, KEGG, MetaCyc, PDB, CAS registry number:


1. Verstraete, M.M., Perez-Borrajero, C., Brown, K.L., Heinrichs, D.E. and Murphy, M.EP. SbnI is a free serine kinase that generates O -phospho-l-serine for staphyloferrin B biosynthesis in Staphylococcus aureus. J. Biol. Chem 293 (2018) 6147-6160. [PMID: 29483190]

[EC created 2019]

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